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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/fastos/fastos.h>
#include "buffered_output.h"
namespace vbench {
BufferedOutput &
BufferedOutput::printf(const char *fmt, ...)
{
ensureFree(256);
int space = (_data.size - _pos);
int size;
va_list ap;
va_start(ap, fmt);
size = vsnprintf(_data.data + _pos, space, fmt, ap);
va_end(ap);
assert(size >= 0);
if (size >= space) {
space = size + 1;
ensureFree(space);
va_start(ap, fmt);
size = vsnprintf(_data.data + _pos, space, fmt, ap);
va_end(ap);
assert((size + 1) == space);
}
_pos += size;
return *this;
}
} // namespace vbench
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